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for #405, improve the HTT FLV to 3k. 2.0.169

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pull/444/head
winlin 10 years ago
parent b53e9814b3
commit 960341b9b2
8 changed files with 140 additions and 26 deletions
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4
README.md
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@ -716,7 +716,8 @@ The play HTTP FLV benchmark by [SB](https://github.com/simple-rtmp-server/srs-be
| Update | SRS | Clients | Type | CPU | Memory | Commit |
| ------------- | --------- | ------------- | ------------- | --------- | -------- | ------------ |
| 2014-05-24 | 2.0.167 | 1.0k(1000) | players | 82% | 86MB | - |
| 2014-05-24 | 2.0.168 | 2.3k(2300) | players | 92% | 276MB | - |
| 2014-05-24 | 2.0.168 | 2.3k(2300) | players | 92% | 276MB | [code][p17] |
| 2014-05-24 | 2.0.169 | 3.0k(3000) | players | 94% | 188MB | [code][p18] |
### Latency benchmark
@ -832,6 +833,7 @@ Winlin
[p14]: https://github.com/simple-rtmp-server/srs/commit/10297fab519811845b549a8af40a6bcbd23411e8
[p15]: https://github.com/simple-rtmp-server/srs/commit/0d6b91039d408328caab31a1077d56a809b6bebc
[p16]: https://github.com/simple-rtmp-server/srs/commit/0d6b91039d408328caab31a1077d56a809b6bebc
[p17]: https://github.com/simple-rtmp-server/srs/commit/fc995473eb02c7cf64b5b212b456e11f34aa7984
[authors]: https://github.com/simple-rtmp-server/srs/blob/develop/AUTHORS.txt
[bigthanks]: https://github.com/simple-rtmp-server/srs/wiki/v1_CN_Product#bigthanks

81
trunk/src/app/srs_app_http_conn.cpp
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@ -98,8 +98,14 @@ int SrsHttpResponseWriter::write(char* data, int size)
if (!header_wrote) {
write_header(SRS_CONSTS_HTTP_OK);
if ((ret = send_header(data, size)) != ERROR_SUCCESS) {
srs_error("http: send header failed. ret=%d", ret);
return ret;
}
}
// check the bytes send and content length.
written += size;
if (content_length != -1 && written > content_length) {
ret = ERROR_HTTP_CONTENT_LENGTH;
@ -107,11 +113,6 @@ int SrsHttpResponseWriter::write(char* data, int size)
return ret;
}
if ((ret = send_header(data, size)) != ERROR_SUCCESS) {
srs_error("http: send header failed. ret=%d", ret);
return ret;
}
// ignore NULL content.
if (!data) {
return ret;
@ -143,6 +144,71 @@ int SrsHttpResponseWriter::write(char* data, int size)
return ret;
}
int SrsHttpResponseWriter::writev(iovec* iov, int iovcnt, ssize_t* pnwrite)
{
int ret = ERROR_SUCCESS;
// when header not ready, or not chunked, send one by one.
if (!header_wrote || content_length != -1) {
ssize_t nwrite = 0;
for (int i = 0; i < iovcnt; i++) {
iovec* piovc = iov + i;
nwrite += piovc->iov_len;
if ((ret = write((char*)piovc->iov_base, (int)piovc->iov_len)) != ERROR_SUCCESS) {
return ret;
}
}
if (pnwrite) {
*pnwrite = nwrite;
}
return ret;
}
// ignore NULL content.
if (iovcnt <= 0) {
return ret;
}
// send in chunked encoding.
int nb_iovss = iovcnt * 4;
iovec* iovss = new iovec[nb_iovss];
SrsAutoFree(iovec, iovss);
char* pheader_cache = header_cache;
for (int i = 0; i < iovcnt; i++) {
int left = SRS_HTTP_HEADER_CACHE_SIZE - (int)(pheader_cache - header_cache);
srs_assert(left > 0);
iovec* data_iov = iov + i;
int nb_size = snprintf(pheader_cache, left, "%x", (int)data_iov->iov_len);
iovec* iovs = iovss + (i * 4);
iovs[0].iov_base = (char*)pheader_cache;
iovs[0].iov_len = (int)nb_size;
iovs[1].iov_base = (char*)SRS_HTTP_CRLF;
iovs[1].iov_len = 2;
iovs[2].iov_base = (char*)data_iov->iov_base;
iovs[2].iov_len = (int)data_iov->iov_len;
iovs[3].iov_base = (char*)SRS_HTTP_CRLF;
iovs[3].iov_len = 2;
pheader_cache += nb_size;
}
ssize_t nwrite;
if ((ret = skt->writev(iovss, nb_iovss, &nwrite)) != ERROR_SUCCESS) {
return ret;
}
if (pnwrite) {
*pnwrite = nwrite;
}
return ret;
}
void SrsHttpResponseWriter::write_header(int code)
{
if (header_wrote) {
@ -1513,6 +1579,11 @@ int SrsStreamWriter::write(void* buf, size_t count, ssize_t* pnwrite)
return writer->write((char*)buf, (int)count);
}
int SrsStreamWriter::writev(iovec* iov, int iovcnt, ssize_t* pnwrite)
{
return writer->writev(iov, iovcnt, pnwrite);
}
SrsLiveStream::SrsLiveStream(SrsSource* s, SrsRequest* r, SrsStreamCache* c)
{
source = s;

8
trunk/src/app/srs_app_http_conn.hpp
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@ -71,7 +71,11 @@ class SrsHttpMessage;
#ifdef SRS_AUTO_HTTP_PARSER
#define SRS_HTTP_HEADER_CACHE_SIZE 16
// for HTTP FLV, each video/audio packet is send by 3 iovs,
// while each iov is send by 4 sub iovs, that is needs 3 chunk header,
// suppose each header is 16 length, 3*16=48 is ok.
// that is, 512 can used for 16 iovs to send.
#define SRS_HTTP_HEADER_CACHE_SIZE 512
/**
* response writer use st socket
@ -105,6 +109,7 @@ public:
virtual int final_request();
virtual SrsHttpHeader* header();
virtual int write(char* data, int size);
virtual int writev(iovec* iov, int iovcnt, ssize_t* pnwrite);
virtual void write_header(int code);
virtual int send_header(char* data, int size);
};
@ -541,6 +546,7 @@ public:
virtual int64_t tellg();
public:
virtual int write(void* buf, size_t count, ssize_t* pnwrite);
virtual int writev(iovec* iov, int iovcnt, ssize_t* pnwrite);
};
/**

2
trunk/src/core/srs_core.hpp
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@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// current release version
#define VERSION_MAJOR 2
#define VERSION_MINOR 0
#define VERSION_REVISION 168
#define VERSION_REVISION 169
// server info.
#define RTMP_SIG_SRS_KEY "SRS"

22
trunk/src/kernel/srs_kernel_file.cpp
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@ -30,6 +30,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <fcntl.h>
#include <sstream>
#include <sys/uio.h>
using namespace std;
#include <srs_kernel_log.hpp>
@ -145,6 +146,27 @@ int SrsFileWriter::write(void* buf, size_t count, ssize_t* pnwrite)
return ret;
}
int SrsFileWriter::writev(iovec* iov, int iovcnt, ssize_t* pnwrite)
{
int ret = ERROR_SUCCESS;
ssize_t nwrite = 0;
for (int i = 0; i < iovcnt; i++) {
iovec* piov = iov + i;
ssize_t this_nwrite = 0;
if ((ret = write(piov->iov_base, piov->iov_len, &this_nwrite)) != ERROR_SUCCESS) {
return ret;
}
nwrite += this_nwrite;
}
if (pnwrite) {
*pnwrite = nwrite;
}
return ret;
}
SrsFileReader::SrsFileReader()
{
fd = -1;

10
trunk/src/kernel/srs_kernel_file.hpp
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@ -31,6 +31,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <string>
// for srs-librtmp, @see https://github.com/simple-rtmp-server/srs/issues/213
#ifndef _WIN32
#include <sys/uio.h>
#endif
/**
* file writer, to write to file.
*/
@ -62,6 +67,11 @@ public:
* @param pnwrite the output nb_write, NULL to ignore.
*/
virtual int write(void* buf, size_t count, ssize_t* pnwrite);
/**
* for the HTTP FLV, to writev to improve performance.
* @see https://github.com/simple-rtmp-server/srs/issues/405
*/
virtual int writev(iovec* iov, int iovcnt, ssize_t* pnwrite);
};
/**

29
trunk/src/kernel/srs_kernel_flv.cpp
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@ -223,31 +223,24 @@ int SrsFlvEncoder::write_tag(char* header, int header_size, char* tag, int tag_s
{
int ret = ERROR_SUCCESS;
// write tag header.
if ((ret = _fs->write(header, header_size, NULL)) != ERROR_SUCCESS) {
if (!srs_is_client_gracefully_close(ret)) {
srs_error("write flv tag header failed. ret=%d", ret);
}
return ret;
}
// write tag data.
if ((ret = _fs->write(tag, tag_size, NULL)) != ERROR_SUCCESS) {
if (!srs_is_client_gracefully_close(ret)) {
srs_error("write flv tag failed. ret=%d", ret);
}
return ret;
}
// PreviousTagSizeN UI32 Size of last tag, including its header, in bytes.
char pre_size[SRS_FLV_PREVIOUS_TAG_SIZE];
if ((ret = tag_stream->initialize(pre_size, SRS_FLV_PREVIOUS_TAG_SIZE)) != ERROR_SUCCESS) {
return ret;
}
tag_stream->write_4bytes(tag_size + header_size);
if ((ret = _fs->write(pre_size, sizeof(pre_size), NULL)) != ERROR_SUCCESS) {
iovec iovs[3];
iovs[0].iov_base = header;
iovs[0].iov_len = header_size;
iovs[1].iov_base = tag;
iovs[1].iov_len = tag_size;
iovs[2].iov_base = pre_size;
iovs[2].iov_len = sizeof(SRS_FLV_PREVIOUS_TAG_SIZE);
if ((ret = _fs->writev(iovs, 3, NULL)) != ERROR_SUCCESS) {
if (!srs_is_client_gracefully_close(ret)) {
srs_error("write flv previous tag size failed. ret=%d", ret);
srs_error("write flv tag failed. ret=%d", ret);
}
return ret;
}

10
trunk/src/protocol/srs_http_stack.hpp
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@ -33,6 +33,11 @@
#include <string>
#include <vector>
// for srs-librtmp, @see https://github.com/simple-rtmp-server/srs/issues/213
#ifndef _WIN32
#include <sys/uio.h>
#endif
class SrsFileReader;
class SrsHttpHeader;
class ISrsHttpMessage;
@ -188,6 +193,11 @@ public:
// the initial 512 bytes of written data to DetectContentType.
// @param data, the data to send. NULL to flush header only.
virtual int write(char* data, int size) = 0;
/**
* for the HTTP FLV, to writev to improve performance.
* @see https://github.com/simple-rtmp-server/srs/issues/405
*/
virtual int writev(iovec* iov, int iovcnt, ssize_t* pnwrite) = 0;
// WriteHeader sends an HTTP response header with status code.
// If WriteHeader is not called explicitly, the first call to Write

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